Vertical stepper stage apparatus



FIG. 1 is a top plan view of the novel vertical stepper stage apparatus;

FIG. 2 is a right side elevational view thereof;

FIG. 3 is a left side elevational view thereof;

FIG. 4 is a frontal (or rear) elevational view, the opposite view being a mirror image thereof;

FIG. 5 is a bottom plan view thereof; and,

FIG. 6 is a perspective view thereof. 

The ornamental design for a vertical stepper stage apparatus, as shown and described. 